I'm not denying that's probably true regarding Keir Starmer, but from the point of view of how electable someone is between he and Jeremy Corbyn, Keir Starmer knows how to play the game better and is 100% against Brexit. If he could wrangle control of the leadership and Labour went into the next election on another referendum agenda then a fair few would vote on that. However much some people might like to think Brexit is everyone's dream come true, that is less and less accurate, more and more people are turned off the whole idea now they understand the level of misinformation and the utterly useless government efforts at Brexit.